(!!) (Good Value) 12AX7 Siemens Halske Germany rebranded "BOGEN" used/good 1960 (161 Series) (Gm=1400/1500 and 0.8/0.9ma)

1 low noise tube) 12AX7 Siemens rebranded "BOGEN" used/good in white box 1960 (161 Series) 

1 section) 0.8ma Gm=1400

1 section) 0.9ma Gm=1500

Good used mA range 0.7-0.9ma

Good used Gm range 1300-1500

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